EP3089514B1 - Procédé pour faire fonctionner un dispositif mobile et appareil de transfert d'un dispositif mobile - Google Patents

Procédé pour faire fonctionner un dispositif mobile et appareil de transfert d'un dispositif mobile Download PDF

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Publication number
EP3089514B1
EP3089514B1 EP16165011.4A EP16165011A EP3089514B1 EP 3089514 B1 EP3089514 B1 EP 3089514B1 EP 16165011 A EP16165011 A EP 16165011A EP 3089514 B1 EP3089514 B1 EP 3089514B1
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European Patent Office
Prior art keywords
vehicle
mobile device
femtocell
mobile
standstill
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EP16165011.4A
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German (de)
English (en)
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EP3089514A1 (fr
Inventor
Lutz P. Richter
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Valeo Telematik und Akustik GmbH
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Peiker Acustic GmbH
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Publication of EP3089514A1 publication Critical patent/EP3089514A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1446—Reselecting a network or an air interface over a different radio air interface technology wherein at least one of the networks is unlicensed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/005—Moving wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Definitions

  • the present invention relates to a method for operating a mobile device in a cabin of a vehicle as well as in an environment outside of the vehicle, an apparatus for handing over a mobile device from one of a multiplicity of base stations of a mobile network to a communication system of a vehicle, and for operating the mobile device in a cabin of the vehicle and for handing over the mobile device from the communication system of the vehicle to one of a multiplicity of base station of a mobile network.
  • Small communication cells for example, femtocells or picocells, allow mobile-network providers to extend the network and to provide better coverage and higher data rates in a cost efficient manner.
  • femtocells or picocells allow mobile-network providers to extend the network and to provide better coverage and higher data rates in a cost efficient manner.
  • Such a small cell is an inexpensive base station due to low-power consumption and reduced signal strength.
  • These cells utilize commercial cellular communication standards and common licensed transmission spectra.
  • a mobile station for example, a mobile phone, a smart phone or tablet computer, a small cell appears indistinguishable from a traditional base station, as they all have the usual overhead channels, signalization and are capable of in-band handoffs.
  • all 3G/4G/5G-equipped devices used inside the vehicle can be connected to a mobile-network without any detractions by the vehicle environment.
  • detractions occur, for example, by the metallic frame of the vehicle and/or by thermally insulating films applied to the windows of the vehicle.
  • DE 10 2010 028 859 A1 proposes a small cell management by using route guidance information. A similar approach is disclosed in DE 10 2011 007 755 A1 .
  • US 2014/045491A1 describes a system of interacting relay nodes, each being configured to provide an in-band cellular radio access and an out-band radio access for at least one user equipment within the coverage area of a corresponding, relay node via at least one in-band cellular radio access link and at least one out-band radio access link, respectively; to transmit user data related to the in-band cellular radio access via first cellular radio access backhaul link and user data related to the out-band radio access via a second cellular radio access backhaul link; and to communicate with the at least one other relay node in order to per-form at least radio control-related functionalities between the interconnected relay nodes.
  • EP 1 138 164 A2 describes an arrangement for providing mobile stations in a mobile vehicle with radio coverage. It comprises a mobile base station which is arranged within the mobile vehicle and which serves at least one mobile cell provided in the mobile vehicle, internal antenna means arranged within the mobile vehicle for providing communication with the mobile stations in the mobile vehicle and external communication means for providing communication between the mobile vehicle and the core network.
  • the mobile base station and the mobile cell(s) handled thereby are stationary within a fixed cell, at least for a given time period, the mobile base station is docked in said fixed cell such that handovers are allowed between the mobile cell served by the mobile base station and the fixed cell.
  • the invention also relates to a method of providing mobile stations in a mobile vehicle with radio coverage and to a communication system comprising such an arrangement.
  • a mobile radio node comprising: radio circuitry configured to communicate with one or more user equipments, UEs, and processing circuitry configured to: determine a mobility state of the mobile radio node as one of three or more different mobility states; determine control information based on the determined mobility state of the mobile radio node; and perform or initiate an action based on the determined control information.
  • the in-vehicle small cell In contrast to conventional and widely used small cells, which are connected to the backhaul of the network by wire, for example, via DSL, the in-vehicle small cell must be connected by a wireless backhaul link. In most significant cases, this link is established via the base station itself. Accounting for the movement of an in-vehicle small cell is not straightforward and requires additional mobility features that are currently not supported by a mobile-network architecture. For example, since a conventional small cell is installed at a fixed location, in order to enable a seamless handover (from base station to small cell or between small cells), the small cell must be part of the network configuration, such as location areas or a "neighborhood cell list".
  • Another issue is that, when the vehicle is moving the wireless backhaul link of an in-vehicle small cell can vary due to radio/data channel transmission conditions and areal coverage.
  • the vehicle To enable seamless communication and connectivity for a mobile device to a mobile network when using a vehicle which may be, for example, a bus, train or car, the vehicle must provide an installed communications system containing a femtocell and a WiFi-hot-spot, both connected to the mobile network via one dedicated network access device as a part of the communications system.
  • the in-vehicle femtocell When the vehicle is stopped, for example, parked, the in-vehicle femtocell will be connected to the backhaul elements, including a femtocell gateway, via a dedicated base station (macro cell) of the mobile network.
  • the network will provide neighborhood cell information with parameters of the in-vehicle femtocell included to all mobile devices, connected to the mobile network via this specific base station.
  • the mobile device When a user enters the vehicle with an active mobile device, the mobile device is performing a handover procedure to the in-vehicle femtocell.
  • the in-vehicle WiFi-hot-spot is activated at all given time and connected to and controlled by the mobile network via the same network access device as it is used for the connection of the femtocell to the mobile network.
  • the in-vehicle communication system When positioned inside the vehicle, the in-vehicle communication system will initiate a seamless handover of the mobile device from the femtocell component to the hot-spot component. This handover is done either in the case the vehicle starts moving or at any time before the vehicle starts moving, and especially immediately after the connection to the femtocell has been established.
  • the connection to the backhaul /femtocell gateway is terminated. But a seamless connection and communication of a mobile device in a vehicle to the mobile network is still available via the hot-spot functionality.
  • a handover and roaming of the in-vehicle communication system between different macro cells/base stations and mobile networks is done efficiently based on active and state of the art procedures. That is, due to the hot-spot connectivity, the mobile device is connected and communicating without restrictions.
  • the relevant neighborhood cell information is gathered and transferred to the mobile device by the in-vehicle communication system. Therefore, a seamless handover to a dedicated macro cell or another femtocell in the area where the vehicle comes to a stop is done by the mobile device without any interferences when the user exits the vehicle.
  • a method is proposed wherein when a standstill of the vehicle is detected, a seamless handover of the mobile device from the WiFi-hot-spot to the femtocell is performed.
  • a neighborhood cell list is collected by the network access device and is transmitted in a first step to the femtocell and/or to the WiFi-hot-spot each time a standstill of the vehicle is detected or each time a standstill of the vehicle is predicted by a control unit of the vehicle and/or by a control unit of the mobile device.
  • the neighborhood cell list is provided to each mobile device which is logged in the femtocell and/or to the WiFi-hot-spot.
  • the standstill is classified by the control unit as a deboarding-standstill, which is suitable for passengers to leave the vehicle, or as a traffic-caused-standstill, which is not suitable for passengers to leave the vehicle.
  • the mobile device is provided with neighborhood cell information of the mobile network, which includes parameters of the femtocell before the vehicle is entered.
  • an apparatus wherein when a standstill of the vehicle is detected by a control unit of the apparatus detects a standstill of the vehicle, the apparatus is adapted to performs a seamless handover of the mobile device from the WiFi-hot-spot to the femtocell.
  • the cell information of the mobile network which includes parameters of the femtocell, is emitted by the mobile network and/or is emitted by the WiFi-hot-spot of the vehicle.
  • the network access device collects a cell list and transmits this cell list in a first step to the femtocell and/or to the WiFi-hot-spot each time a control unit of the apparatus detects a standstill of the vehicle or each time the control unit of the apparatus predicts a standstill of the vehicle.
  • the apparatus especially the femtocell and/or the WiFi-hot-spot, provides the neighbor cell list to each mobile device which is logged in.
  • the control unit classifies the standstill as a deboarding-standstill, which is suitable for passengers to leave the vehicle, or as a traffic-caused-standstill, which is not suitable for passengers to leave the vehicle.
  • the apparatus when a deboarding-standstill of the vehicle is detected by the control unit detects a deboarding-standstill of the vehicle, the apparatus is adapted to performs a seamless handover of the mobile device from the WiFi-hot-spot to the femtocell.
  • a vehicle is any land craft especially a road vehicle, a rail vehicle, or an off-road vehicle.
  • a "seamless handover” is a handover of a wireless connection which is performed without any data loss.
  • Fig. 1 describes the interaction of all relevant components.
  • a network access device 202 which is located in a cabin 502 of a vehicle 501 connects the in vehicle small cell (e.g., femtocell) 203 and the WiFi Hot-Spot 204 to a mobile network 101 via different elements of the mobile network 101, especially via service elements 102 and via backhaul elements 103 and specific communication links 401, 402.
  • a mobile device 301 is able to use all components, namely, the small cell 203 or the WiFi-Hot-Spot 204 or a base station 104, 105 or 106 of the mobile network 101 itself for being connected to the mobile network 101.
  • the mobile device 301 establishes a communication link 403 to the mobile network 101 as long as the mobile device 301 is located in an environment 601 outside the cabin 502 of the vehicle 501. Inside the cabin 502 of the vehicle 501 the mobile device 301 establishes a communication link 405 to the small cell 203 or establishes a communication link 404 to the WiFi-hot-spot 204.
  • a communication system 201 of the vehicle 501 comprises the network access device 202 and the in vehicle small cell 203 and the WiFi Hot-Spot 204.
  • the communication system 201 comprises a control unit 205 that detects or predicts the state of movement of the vehicle 501 in order to initiate the collecting of neighborhood cell information of available mobile networks 101 101a.
  • An apparatus 206 for handing over the mobile device 301, 301a from one of a multiplicity of base stations 104, 105, 106, 104a, 105a, 106a of the mobile network 101 to the small cell 203 or to the WiFi-hot-spot 204 or for handing over the mobile device 301 from the small cell 203 or to the WiFi-hot-spot 204 to one of a multiplicity of base station 104, 105, 106 104a, 105a, 106a of the mobile network 101 is provided.
  • the mobile network 101a comprises the communication system 201 wherein the control unit 205 is an optional part of the communication system 201.
  • a control unit 302 is part of the mobile device 301 and not part of the communication system 201.
  • the control unit 302 comprises a gyroscope or other means in order to detect the state of movement of the vehicle and request neighborhood cell information from the communication system 201 in the case that a stop of the vehicle 501 is detected or predicted.
  • Fig. 1 shows the communication system architecture with all possible communication links 401 to 405.
  • Figs. 2 to 4 show, with respect to the mobile device 301, special communication situations.
  • the mobile device 301 is connected and communicates with the mobile network 101 directly via the communication link 403.
  • the mobile device 301 will receive neighborhood cell information with the in-vehicle small cell 203 parameters included. If the vehicle 501 is parking this means the existence of a standstill condition and the communication system 201 of the vehicle 501 is connected to the mobile network 101 via the communication links 401, 402, which include the network's backhaul elements 103, especially the femtocell gateway.
  • the mobile device 301 When the mobile device 301 enters the vehicle it will do a handover to the in-vehicle small cell 203, controlled by the network management, without losing a connection to the mobile network 101 itself.
  • Fig. 3 shows this communication situation with the communication link 405 between the mobile device 301 and the small cell 203.
  • the communication system 201 of the vehicle 501 will not be connected to the backhaul elements 103 of the mobile network 101 anymore.
  • the mobile device 301 is using the in-vehicle WiFi-hot-spot 204 for communication via the communication link 404.
  • the transfer of the mobile devices 301 connectivity and communication from the in-vehicle small cell 203 to the in-vehicle WiFi-hot-spot is done seamlessly and controlled by the in-vehicle communication system 201.
  • Fig. 4 shows this communication situation with the communication link 404 between the mobile device 301 and the WiFi-hot-spot 204.
  • the communication system 201 is connected via the communication link 402 to the service elements 102 of the mobile network 101 for enabling communication and connectivity for the mobile device 301.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (14)

  1. Procédé pour faire fonctionner un dispositif mobile (301) dans la cabine (502) d'un véhicule (501) ainsi que dans l'environnement (601) extérieur au véhicule (501),
    où l'environnement (601) comprend un réseau mobile (101, 101a) avec une multiplicité de stations de base (104, 105, 106 ; 104a, 105a, 106a),
    où le véhicule (501) comprend un système de communication (201), comprenant un dispositif d'accès au réseau (202), une femtocellule (203) et un point d'accès sans fil WiFi (204),
    où la femtocellule (203) est connectée au dispositif d'accès au réseau (202),
    où le point d'accès sans fil WiFi (204) est connecté au dispositif d'accès au réseau (202),
    où le dispositif d'accès au réseau (202) est connecté à l'une des stations de base (104, 105, 106 ; 104a, 105a, 106a) du réseau mobile (101 ; 101a) et
    où le procédé comprend, à différentes occurrences, les étapes suivantes :
    lors du déplacement du dispositif mobile (301) depuis l'environnement (601) vers la cabine (502) du véhicule (501), un transfert sans interruption du dispositif mobile (301) depuis l'une des stations de base (104, 105, 106 ; 104a, 105a, 106a) du réseau mobile (101 ; 101a) vers la femtocellule (203) est effectué,
    où la connexion du dispositif mobile (301) à la femtocellule (203) est soit maintenue active tant que le dispositif mobile (301) reste dans le véhicule (501) et tant que le véhicule (501) est à l'arrêt, et lorsqu'un mouvement du véhicule (501) est détecté, un transfert sans interruption du dispositif mobile (301) depuis la femtocellule (203) vers le point d'accès sans fil WiFi (204) est effectué,
    soit maintenue active uniquement jusqu'à ce qu'un transfert sans interruption du dispositif mobile (301) depuis la femtocellule (203) vers le point d'accès sans fil WiFi (204) soit établi, lors d'un déplacement du dispositif mobile (301) depuis la cabine (502) du véhicule (501) vers l'environnement (601), un transfert sans interruption du dispositif mobile (301) vers une des multiples stations de base (104, 105, 106 ; 104a, 105a, 106a) d'un réseau mobile (101 ; 101a) est effectué,
    où, lorsqu'un arrêt du véhicule (501) est détecté, un transfert sans interruption du dispositif mobile (301) du point d'accès sans fil WiFi (204) à la femtocellule (203) est effectué.
  2. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 1, dans lequel une liste de cellules avoisinantes est collectée par le dispositif d'accès au réseau (202) et est transmise dans une première étape à la femtocellule (203) et/ou au point d'accès sans fil WiFi (204) chaque fois qu'un arrêt du véhicule (501) est détecté ou qu'un arrêt du véhicule (501) est prévu par une unité de commande du véhicule (501) et/ou par une unité de commande (302) du dispositif mobile (301).
  3. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 2, dans lequel, dans une deuxième étape, la liste des cellules avoisinantes est fournie à chaque dispositif mobile (301) qui est enregistré dans la femtocellule (203) et/ou dans le point d'accès sans fil WiFi (204).
  4. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 1, dans lequel chaque fois qu'un arrêt du véhicule (501) est détecté ou chaque fois qu'un arrêt du véhicule (501) est prévu par une unité de commande du véhicule (501) et/ou par une unité de commande (205) du dispositif mobile (301), l'arrêt est classé par l'unité de commande (205) comme un arrêt de débarquement, qui est adapté pour permettre aux passagers de quitter le véhicule (501) ou comme un arrêt dû au trafic, qui n'est pas adapté pour permettre aux passagers de quitter le véhicule (501).
  5. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 4, dans lequel, lorsqu'un arrêt de débarquement du véhicule (501) est détecté, un transfert sans interruption du dispositif mobile (301) du point d'accès sans fil WiFi (204) à la femtocellule (203) est effectué.
  6. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 1, utilisant la fonctionnalité de femtocellule uniquement lorsque le véhicule (501) est à l'arrêt, exécutant toutes les procédures nécessaires pour être connecté aux composants de liaison réseau et à la passerelle de femtocellule du réseau mobile (101 ; 101a) pour faire partie d'une liste de cellules avoisinantes, transmise par le réseau mobile (101 ; 101a) par l'intermédiaire d'une station de base dédiée (104, 105, 106 ; 104a, 105a, 106a) disponible dans la zone où se trouve le véhicule (501).
  7. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 1, utilisant la fonctionnalité de point d'accès sans fil WiFi lorsque le véhicule (501) se déplace pour permettre à tous les dispositifs mobiles (301), utilisés à l'intérieur du véhicule (501), d'être connectés au réseau mobile (101 ; 101a) et de communiquer avec lui.
  8. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 1, dans lequel le dispositif mobile (301) se voit fournir des informations de cellule avoisinante du réseau mobile (101 ; 101a), qui comprennent des paramètres de la femtocellule (203) avant que le véhicule (501) soit entré.
  9. Procédé pour faire fonctionner un dispositif mobile (301) selon la revendication 8, dans lequel les informations des cellules du réseau mobile (101 ; 101a), qui comprennent des paramètres de la femtocellule (203), sont émises par le réseau mobile (101 ; 101a) et/ou sont émises par le point d'accès sans fil WiFi (204) du véhicule (501).
  10. Appareil (206) pour transférer un dispositif mobile (301) depuis une station de base parmi une multiplicité de stations de base (104, 105, 106 ; 104a, 105a, 106a) d'un réseau mobile (101 ; 101a) vers un système de communication (201) d'un véhicule (501), et pour commander le dispositif mobile (301) dans une cabine (502) du véhicule (501) et pour transférer le dispositif mobile (301) depuis le système de communication (201) du véhicule (501) vers une station de base parmi une multiplicité de stations de base (104, 105, 106 ; 104a, 105a, 106a) d'un réseau mobile (101 ; 101a),
    où le système de communication (201) du véhicule (501) comprend un dispositif d'accès au réseau (202) et une femtocellule (203) et un point d'accès sans fil WiFi (204),
    où le dispositif femtocellule (203) est connecté au dispositif d'accès au réseau (202),
    où le point d'accès sans fil WiFi (204) est connecté au dispositif d'accès au réseau (202),
    où le dispositif d'accès au réseau (202) est connecté à une station de base parmi une multiplicité de stations de base (104, 105, 106 ; 104a, 105a, 106a) d'un réseau mobile (101 ; 101a), et
    où l'appareil (206) est adapté pour effectuer un transfert sans interruption du dispositif mobile (301) depuis les stations de base (104, 105, 106 ; 104a, 105a, 106a) du réseau mobile (101 ; 101a) vers la femtocellule embarquée (203) au cours du déplacement du dispositif mobile (301) depuis l'environnement (601) dans la cabine (502) du véhicule (501),
    où soit l'appareil (206) est adapté pour maintenir active la connexion du dispositif mobile (301) à la femtocellule (203) tant que le dispositif mobile (301) reste dans le véhicule (501) et tant que le véhicule (501) est à l'arrêt, où l'appareil (206) est adapté pour effectuer un transfert sans interruption du dispositif mobile (301) depuis la femtocellule (203) embarquée vers le point d'accès sans fil Wi-Fi (204) embarqué lorsqu'un mouvement du véhicule (501) est détecté,
    soit l'appareil (206) est adapté pour effectuer ensuite un transfert sans interruption du dispositif mobile (301) depuis la femtocellule embarquée (203) vers le point d'accès sans fil WiFi embarqué (204),
    où l'appareil (206) est adapté pour effectuer un transfert sans interruption du dispositif mobile (301) depuis le dispositif femtocellule embarqué (203) ou depuis le dispositif de point d'accès sans fil WiFi embarqué (204) vers une station de base parmi une multiplicité de stations de base (104, 105, 106 ; 104a, 105a, 106a) d'un réseau mobile (101 ; 101a) lorsque le dispositif mobile (301) quitte le véhicule (501), où, lorsqu'un arrêt du véhicule (501) est détecté par une unité de commande de l'appareil (206), l'appareil (206) est adapté pour effectuer un transfert sans interruption du dispositif mobile (301) depuis le point d'accès sans fil WiFi (204) vers la femtocellule (203).
  11. Appareil (206) selon la revendication 10, dans lequel le dispositif d'accès au réseau (202) collecte une liste de cellules et transmet cette liste de cellules dans une première étape à la femtocellule (203) et/ou au point d'accès sans fil WiFi (204) chaque fois qu'une unité de commande (205) de l'appareil (206) détecte un arrêt du véhicule (501) ou chaque fois que l'unité de commande (205) de l'appareil (206) prévoit un arrêt du véhicule (501).
  12. Appareil (206) selon la revendication 11, dans lequel, dans une seconde étape, l'appareil (206), en particulier la femtocellule (203) et/ou le point d'accès sans fil WiFi (204), fournit la liste des cellules avoisinantes à chaque dispositif mobile (301) qui est connecté.
  13. Appareil (206) selon la revendication 10, dans lequel chaque fois qu'une unité de commande (205) de l'appareil (206) détecte un arrêt du véhicule (501), ou chaque fois que l'unité de commande (205) de l'appareil (206) prévoit un arrêt du véhicule (501), l'unité de commande (205) classe l'arrêt comme un arrêt de débarquement, qui est adapté pour permettre aux passagers de quitter le véhicule (501) ou comme un arrêt dû au trafic, qui n'est pas adapté pour permettre aux passagers de quitter le véhicule (501).
  14. Appareil (206) selon la revendication 13, dans lequel, lorsqu'un arrêt de débarquement du véhicule (501) est détecté par l'unité de commande (205), l'appareil (206) est adapté pour effectuer un transfert sans interruption du dispositif mobile (301) depuis le point d'accès sans fil WiFi (204) vers la femtocellule (203).
EP16165011.4A 2015-04-30 2016-04-13 Procédé pour faire fonctionner un dispositif mobile et appareil de transfert d'un dispositif mobile Active EP3089514B1 (fr)

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US20160323796A1 (en) 2016-11-03
US9998976B2 (en) 2018-06-12

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